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Interesting comparison here by Sport Auto between the 991 Carrera S which is rear wheel drive and the 991 Carrera 4S which is all wheel drive. Both cars have the same 3.8 liter flat-6 engine with 400 horsepower. The test cars are both manual so it is interesting to see how the addition of all wheel drive changes things. The difference in weight between the two cars just 29 kilograms (just 63 pounds) which really is not much additional weight at all.

The acceleration figures in every test favor the all wheel drive C4S. Even up to 124 miles per hour the lighter rear wheel drive Carrera S just can not catch it even in the dry. The C4S acceleration advantage obviously gets much larger in the wet and in the snow.

It is not just acceleration that favors the C4S thanks to traction but the track times as well. The Hockenheim laptime for the C4S on a dry track is faster as well, considerably by 3/10's. Check out the full data below.

Wow, I am very surprised about the dry numbers. Especially looking at times like 0-160 km/h (0-100) - that's nuts. I wonder if they tuned the engine a bit differently on the C4S? Otherwise, I can't understand it.

Wow, I am very surprised about the dry numbers. Especially looking at times like 0-160 km/h (0-100) - that's nuts. I wonder if they tuned the engine a bit differently on the C4S? Otherwise, I can't understand it.

Most people I know still prefer the RWD due to Better steering feel. At least on the previous models

True, but the technology has gotten so good that those who want manual gearboxes and RWD are simply living in the past and don't want to admit that technology has passed them by. Hey, I'm a purist too, and love feeling totally connected to the car and being in complete control. But sooner or later people are are going to have to make a choice....being the fastest, or being the most nostalgic. Personally, I like winning. All those guys who want to manually shift a RWD car are going to end up running at the back of the pack.

Beautiful. Thanks.
I've been a fan of 4S since 996. The new one seems to be awesome, better than S in every aspect, with the hilariously small, totally insignificant, weight penalty. I would happily pay a lot more for 4S vs S.